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CVE-2003-0567
Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence…
High7.8EPSS 16.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 16.6% · top 3.0% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (6)
- VU#411332 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- oval:org.mitre.oval:def:5603 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- CA-2003-17 (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 20030717 IOS Interface Blocked by IPv4 Packet (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- CA-2003-15 (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 20030718 (no subject) (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2003-0567)Record last updated .